EP1121710A1 - Lampe econome en energie avec ballast electronique - Google Patents

Lampe econome en energie avec ballast electronique

Info

Publication number
EP1121710A1
EP1121710A1 EP99950743A EP99950743A EP1121710A1 EP 1121710 A1 EP1121710 A1 EP 1121710A1 EP 99950743 A EP99950743 A EP 99950743A EP 99950743 A EP99950743 A EP 99950743A EP 1121710 A1 EP1121710 A1 EP 1121710A1
Authority
EP
European Patent Office
Prior art keywords
lamp
base
energy
gas discharge
inner cover
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP99950743A
Other languages
German (de)
English (en)
Inventor
Holding Ag 7Ton
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
7Ton Holding AG
Original Assignee
7Ton Holding AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 7Ton Holding AG filed Critical 7Ton Holding AG
Publication of EP1121710A1 publication Critical patent/EP1121710A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/02—Details
    • H01J61/56—One or more circuit elements structurally associated with the lamp
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
    • H05B41/02—Details
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
    • H05B41/14—Circuit arrangements
    • H05B41/26—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc
    • H05B41/28—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc using static converters
    • H05B41/282—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc using static converters with semiconductor devices
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps

Definitions

  • the invention relates to energy-saving lamps with an electronic ballast according to the preamble of claim 1.
  • Energy-saving lamps are usually built so that the user can easily replace them with the well-known light bulbs with Edison thread, bayonet base or the like. For this reason, many energy-saving lamps are equipped with an Edison thread, for example size E 27/30.
  • DE-A 36 11 611 discloses a standard circuit for the electronic ballasts. A distinction is made between the following components: mains rectifier with interference suppressor and charging capacitor, inverter with two switching transistors and an oscillating circuit transformer with three galvanically isolated windings, lamp ballast and gas discharge lamp.
  • the electrical and electronic components of the ballast are usually built on a printed circuit board with printed conductor tracks.
  • the first obstacle is the high voltages to which the electronics are exposed. These are the AC mains voltage with 230 V, the rectified AC mains voltage with 400 V and the lamp supply voltage, which reaches values of 1,500 V and more before the gas discharge is ignited.
  • the switching transistors which reach housing temperatures of approx. 140 ° C due to the relatively high oscillation frequency of 20 to 80 kHz.
  • Heat also arises in the various Chokes, because these have to be wound with small wire thicknesses due to the required miniaturization.
  • Another heat source are the magnetic stray fields, which emanate from the chokes, in particular from the lamp ballast, and which induce corresponding short-circuit currents in the adjacent metal parts, for example the lamp base.
  • the gas discharge lamp also generates heat, especially its heating electrodes.
  • the present invention is based on the object of improving and developing the known energy-saving lamps in such a way that the electronic ballast can be accommodated completely in a standardized lamp base.
  • the solution according to the invention is based on a large number of measures which mutually support one another in order to achieve the set goal of accommodating the electronic ballast completely in the lamp base, preferably in a screw base of size E 27.
  • the switching transistors are therefore arranged on the printed circuit board so that they can give off their heat well to the metal parts of the lamp base.
  • the switching transistors are arranged in such a way that their heat sinks lie against the base of the lamp base, so that special insulation measures are not necessary.
  • the printed circuit board While in the known energy-saving lamps the printed circuit board is located outside the lamp base, in the solution according to the invention it is placed directly in the lamp base. There it is held with the help of a special inner cover, which is placed on top of the lamp base, preferably snapped onto it in a non-detachable manner.
  • the lamp base has several, preferably four openings on its upper edge, and the inner cover has an edge with corresponding latching cams. This ensures that the inner cover cannot be removed unintentionally. Electrical safety is thus guaranteed.
  • the inner cover is preferably designed such that it closes the lamp base tightly. This protects the electronic components and the printed circuit board against the harmful effects of air pollution, humidity, etc.
  • the inner cover is metallized on the outside. This metallization acts as a shield and at the same time as a light reflector.
  • the ring core has a flat rectangular shape and sits in a suitable recess in the printed circuit board.
  • the three windings are designed as printed conductor tracks, one half winding each on the printed circuit board, the corresponding second half windings being accommodated on an additional board.
  • the resonant circuit transmitter is completed by pushing the additional plate upside down through the toroid and placing it on the printed circuit board. After soldering the corresponding transformer is finished. At the same time, the toroid is fixed in the printed circuit board.
  • the shape and arrangement of the lamp ballast also contribute to the miniaturization of the electronic ballast.
  • An open ferrite body is used as the winding body, so that the wire winding can be applied very easily.
  • the wound winding body is then inserted and glued into a cutout, preferably at the upper edge of the printed circuit board. In this way, the lamp ballast has a maximum distance from the metal parts of the lamp base and a minimum distance from the gas discharge lamp.
  • the lamp ballast generates considerable stray fields, which still induce considerable short-circuit currents in the metal parts of the lamp base.
  • a U-shaped magnetic core is also attached, which overlaps the wound ferrite coil former with a sufficient air gap.
  • This U-core reduces the stray fields of the choke.
  • it offers the possibility of specifically changing the inductance and thus the AC resistance of the ballast choke during production, so that gas discharge lamps of different wattages can be operated on otherwise identical ballasts.
  • a double-sided metallization of the printed circuit board also contributes to the miniaturization of the ballast electronics.
  • the gas discharge lamp which is known to consist of one or more mostly U-shaped glass tubes, must be mechanically firmly and permanently connected to the lamp base.
  • a base cap made of insulating material is usually used, which is connected to the lamp base on the one hand and to which the gas discharge lamp is attached on the other hand, generally with the aid of a so-called cement.
  • Such a base attachment is also used in the energy-saving lamp according to the invention. This is in two parts, the lower part according to an advantageous embodiment having a central opening whose diameter is larger than the diameter of the external contact part, but smaller than the diameter of the edge of the lamp base.
  • the gas discharge lamp can also be attached in the following manner.
  • a holding device on the inner cover which corresponds in shape and length to the glass tube or the glass tubes of the gas discharge lamp and holds them in a clamped manner. It is understood that the resilient elements of the holding device are located in the center of the gas discharge lamp, so that the radiation of the light is not hindered.
  • a permanent attachment between the gas discharge lamp and the holding device on the lid can be made with a suitable adhesive.
  • an additional holding bracket is provided which holds the gas discharge lamp, for example in the area of the so-called hot kiss. Additional devices are then attached to the inner cover, on which the retaining bracket is anchored.
  • Show it 1 is an energy saving lamp in a perspective view
  • FIG. 2 shows the energy-saving lamp of FIG. 1 as a partial exploded view
  • FIG. 3 shows a longitudinal section through the lamp base with the electronic ballast of the energy-saving lamp according to FIG. 1,
  • FIG. 4 shows a plan view of a first inner cover which closes the lamp base
  • FIG. 5 shows a section through the inner cover of FIG. 4 along the line V-V
  • FIG. 6 is a plan view of a second inner cover
  • Fig. 7 is a side view of the inner cover of Fig. 6 and
  • FIG. 8 shows a partial longitudinal section through an energy-saving lamp with an envelope bulb.
  • FIG. 1 shows a perspective view of an energy-saving lamp, essentially consisting of a lamp base 10, here in the form of a screw base with Edison thread E 27.
  • a lamp base 10 here in the form of a screw base with Edison thread E 27.
  • a gas discharge lamp 30 consisting of two U-shaped glass tubes 31 can also be seen.
  • a lamp cap 20 consisting of an upper part 22 and a lower part 21 can be seen, which connects the lamp base 10 and the gas discharge lamp 30 and thereby the ends of the glass tubes 31 covers.
  • Fig. 2 shows the energy saving lamp of Fig. 1 as an explosive.
  • the lamp base 10 which is closed by an inner cover 60. This will be described in more detail with reference to FIGS. 5 and 6. It can also be seen connecting wires 50 emerging from the inner cover 60 of an electronic ballast housed in the lamp base 10, which is described in more detail with reference to FIG. 4, and the connecting wires 32 of the gas discharge lamp 30 melted into the glass tubes 31.
  • the energy-saving lamp can be mounted with the lower part 21 of the lamp cap 20 removed. If the connecting wires 32, 50 are connected to one another, the lower part 21 of the lamp cap 20 is pushed onto the lamp base 10. For this purpose, it has a central opening, the diameter of which is larger than the diameter of the thread 11, but smaller than the diameter of the upper edge of the base 10. As soon as the two parts 21, 22 of the lamp attachment are connected to one another, for example by welding or gluing, the energy saving lamp is finished as shown in Fig. 1.
  • the metal thread 11 has in the region of the upper edge four openings 15 distributed around the circumference (see FIG. 3), into which four locking grooves 63 (see FIGS. 4 and 5) arranged on the inner cover 60 are engaged.
  • the inner cover 60 sits non-detachably on the lamp base 10, so that the ballast electronics 40 (FIG. 3) accommodated in the lamp base 10 are protected against external influences such as air pollution, air humidity, etc.
  • the connecting wires 50 to the ballast electronics 40 are passed through corresponding openings 67 in the inner cover 60.
  • FIG. 3 schematically shows a longitudinal section through the screw base 10.
  • the metal thread 11, the central contact 13 and the base block 12 made of insulating material connecting these two are shown.
  • the supporting element of the ballast electronics 40 is a printed circuit board 41, which is in the base 10.
  • the printed circuit board 41 is provided with conductor tracks on both sides and carries all electrical and electronic components. Of these, however, only those that are essential for understanding the invention are shown.
  • a lamp ballast consisting of a ferrite coil body 44 with winding 45 and a U-shaped magnetic core 46 encompassing the coil body 44 with a sufficient air gap Throttle 44, 45 to catch outgoing stray fields, so that they do not generate heat-generating short-circuit currents in the metal thread 11.
  • the U-core 46 offers the possibility of changing the inductance of the lamp ballast 44, 45 and thus its AC resistance by changing its position. As a result, gas discharge lamps 30 with different power consumption can be operated on the otherwise unchanged ballast electronics 40.
  • the two switching transistors 48 can be seen on the right and left. These are arranged in such a way that their heat sinks rest on the base block 12. As a result, the heat loss generated in the switching transistors 48 reaches the metal thread 11 by the shortest route, which thus serves as a heat sink. Since the base stone 12 consists of insulating material, special insulation measures are unnecessary.
  • the printed circuit board 41 has a recess at this point, so that the ring core 43 protrudes approximately half over the front side and half over the rear side of the printed board 41. It is held by an additional plate 42 which is inserted through the ring core 43.
  • the three windings of the resonant circuit transformer are implemented as printed windings (not shown), one half of the windings being accommodated on the printed circuit board 41 and the other half on the additional plate 42.
  • the additional plate 42 is placed upside down on the printed circuit board 41 so that the corresponding partial windings can be soldered to one another. In this way, the three windings can be produced much faster and more space-saving than with conventional ballasts, in which three wire windings have to be wound onto the toroid by hand and finally soldered to the printed circuit board.
  • the magnetic core 47 of the interference suppression choke can still be seen on the printed circuit board 41.
  • Fig. 4 as a plan view and Fig. 5 as a section show a first inner cover 60.
  • This has a base plate 61, under which a peripheral edge 62 is provided.
  • the edge 62 carries on its outside the locking cams 63, which inseparably connect the inner cover 60 to the lamp base 10.
  • two holding grooves 66 are provided opposite one another, which hold the printed circuit board 41 to the right and left, so that it remains securely in the lamp base 10.
  • the base plate 61 of the inner cover 60 has four openings 67, provided on the inside with nozzles through which the connecting wires 50 of the ballast electronics 40 are passed. Lugs 64 on the circumference of the inner cover 60 prevent the inner cover 60 from being pressed into the lamp base 10. A bulge 65 creates space for the lamp ballast 44, 45.
  • FIG. 6 and 7 show a second inner cover 60 'which is particularly intended for energy-saving lamps which have an envelope bulb 1 (FIG. 8), e.g. in the form of light bulbs.
  • the second inner cover 60 ' differs from the first inner cover 60 in that a lamp holding device 70, 71 is provided on its outside.
  • This lamp holding device 70, 71 is shaped in such a way that the glass tubes 31 of the gas discharge lamp 30 can be plugged on from above.
  • Elastic lips lie against the glass tubes 31 from the inside and hold them in place by friction. The radiation of the light generated by the gas discharge lamp 30 is not disturbed.
  • a suitable adhesive for example a silicone adhesive or a cement, can be used to permanently fix the gas discharge lamp 30 to the lamp holder 70, 71.
  • 7 shows a further device for permanently fastening the gas discharge lamp. It is a holding bracket 73, the ends of which are anchored to holding devices 72 and which is guided over the hotkiss of the gas discharge lamp 30.
  • FIGS. 6 and 7 show a partial longitudinal section through an energy-saving lamp in which the gas discharge lamp 75 is covered by an envelope bulb 1 in the form of an incandescent lamp.
  • the gas discharge lamp 75 is seated on the inner cover 60 'of FIGS. 6 and 7.
  • the holding bracket 73 the ends of which are anchored to the holding devices 72, is guided over the hot kiss 74 of the gas discharge lamp 75.
  • the connection between the lamp base 10 and the envelope bulb 1 is produced by a base attachment 76.
  • a reflector 77 is arranged below the gas discharge lamp 30, which reflects the light of the gas discharge lamp 30 and, above all, the heat of the heating filaments in the gas discharge lamp 30 upward, so that the ballast electronics installed in the base 10 are not additionally heated.

Landscapes

  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
  • Discharge-Lamp Control Circuits And Pulse- Feed Circuits (AREA)
  • Circuit Arrangements For Discharge Lamps (AREA)

Abstract

L'invention concerne des lampes économes en énergie pourvues d'un ballast électronique. Ledit ballast comprend une plaquette à circuit imprimé qui est placée dans le culot de lampe (10) et sur laquelle se trouvent tous les composants électroniques. Ceux-ci sont disposés de telle sorte que la chaleur produite pendant le fonctionnement de la lampe peut être transmise de façon optimale au filetage (11) métallique du culot de lampe (10), l'isolateur de culot (12), placé entre le filetage (11) et le contact central (13) et constitué d'un matériau isolant, garantissant l'isolation nécessaire. La lampe à décharge (30), constituée de tubes en verre (31) pliés en forme de U, est fixée au culot (10) à l'aide d'un chapeau (20) en deux parties (21, 22).
EP99950743A 1998-10-14 1999-10-14 Lampe econome en energie avec ballast electronique Withdrawn EP1121710A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE29818340U DE29818340U1 (de) 1998-10-14 1998-10-14 Energiesparlampe mit elektronischem Vorschaltgerät
DE29818340U 1998-10-14
PCT/EP1999/007817 WO2000022651A1 (fr) 1998-10-14 1999-10-14 Lampe econome en energie avec ballast electronique

Publications (1)

Publication Number Publication Date
EP1121710A1 true EP1121710A1 (fr) 2001-08-08

Family

ID=8063904

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99950743A Withdrawn EP1121710A1 (fr) 1998-10-14 1999-10-14 Lampe econome en energie avec ballast electronique

Country Status (4)

Country Link
US (1) US6548948B1 (fr)
EP (1) EP1121710A1 (fr)
DE (1) DE29818340U1 (fr)
WO (1) WO2000022651A1 (fr)

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DE20116815U1 (de) * 2001-10-17 2002-04-11 7Ton Holding Ag, Zug Energiesparlampe
DE20211785U1 (de) 2002-07-31 2002-12-05 7Ton Holding Ag, Zug Energiesparlampe
US7753558B2 (en) * 2002-10-04 2010-07-13 International Rectifier Corporation Compact fluorescent lamp package
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CN101858583A (zh) * 2010-06-17 2010-10-13 鸿富锦精密工业（深圳）有限公司 具有可拆卸电源转换器的灯管
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USD770079S1 (en) 2015-04-02 2016-10-25 Ip Holdings, Llc Light fixture
USD698986S1 (en) 2013-03-27 2014-02-04 Ip Holdings, Llc Horticulture grow light housing
USD698987S1 (en) 2013-06-20 2014-02-04 Ip Holdings, Llc Horticulture grow light housing
USD745993S1 (en) 2013-07-09 2015-12-22 Ip Holdings, Llc Horticulture grow light housing
US9750199B2 (en) 2013-07-18 2017-09-05 Ip Holdings, Llc Air cooled horticulture lighting fixture
US9016907B2 (en) 2013-07-18 2015-04-28 Ip Holdings, Llc Air cooled horticulture lighting fixture for a double ended high pressure sodium lamp
USD748849S1 (en) 2014-06-11 2016-02-02 Ip Holdings, Llc Sealed optics air cooled grow light
USD731701S1 (en) 2014-02-24 2015-06-09 Ip Holdings, Llc Horticulture grow light housing
USD732235S1 (en) 2014-08-07 2015-06-16 Ip Holdings, Llc Horticulture grow light
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USD747029S1 (en) 2014-10-22 2016-01-05 Ip Holdings, Llc Horticulture grow light
USD751245S1 (en) 2014-12-11 2016-03-08 Ip Holdings, Llc Horticulture grow light
USD757346S1 (en) 2015-01-08 2016-05-24 Ip Holdings, Llc Horticulture grow light
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Also Published As

Publication number Publication date
US6548948B1 (en) 2003-04-15
WO2000022651A1 (fr) 2000-04-20
DE29818340U1 (de) 1999-03-18

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